EP3834956A4 - Bend correction method - Google Patents
Bend correction method Download PDFInfo
- Publication number
- EP3834956A4 EP3834956A4 EP19848710.0A EP19848710A EP3834956A4 EP 3834956 A4 EP3834956 A4 EP 3834956A4 EP 19848710 A EP19848710 A EP 19848710A EP 3834956 A4 EP3834956 A4 EP 3834956A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- correction method
- bend correction
- bend
- correction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018150091 | 2018-08-09 | ||
PCT/JP2019/030998 WO2020032070A1 (en) | 2018-08-09 | 2019-08-06 | Bend correction method |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3834956A1 EP3834956A1 (en) | 2021-06-16 |
EP3834956A4 true EP3834956A4 (en) | 2022-07-06 |
Family
ID=69414713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19848710.0A Withdrawn EP3834956A4 (en) | 2018-08-09 | 2019-08-06 | Bend correction method |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210229153A1 (en) |
EP (1) | EP3834956A4 (en) |
JP (1) | JP7036215B2 (en) |
CN (1) | CN112543683A (en) |
WO (1) | WO2020032070A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114192611A (en) * | 2020-09-17 | 2022-03-18 | 宝山钢铁股份有限公司 | Device and method for full-length straightening of seamless steel tube nondestructive flaw detection sample tube |
CN114210770B (en) * | 2021-11-24 | 2022-11-01 | 栋梁铝业有限公司 | Section bar straightening machine |
CN114309147A (en) * | 2021-12-31 | 2022-04-12 | 徐州徐工液压件有限公司 | Straightening method for stretch bending combination |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6146320A (en) * | 1984-08-10 | 1986-03-06 | Nissan Motor Co Ltd | Automatic stress relief press device |
JPS63144822A (en) * | 1986-12-05 | 1988-06-17 | Nippon Steel Corp | Straightening method for bend of long sized stock |
JPH105872A (en) * | 1996-06-26 | 1998-01-13 | Nippon Seiko Kk | Method for straightening bend of long stock |
KR20140085835A (en) * | 2012-12-27 | 2014-07-08 | 재단법인 포항산업과학연구원 | Correcting apparatus for pipe |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5341631B2 (en) * | 1973-04-20 | 1978-11-06 | ||
JPS63199026A (en) * | 1987-02-12 | 1988-08-17 | Toyota Central Res & Dev Lab Inc | Method and device for strain straightening of work |
JPS63199025A (en) | 1987-02-14 | 1988-08-17 | Sumitomo Metal Ind Ltd | Method for straightening bend of pipe/bar stock |
JPH02192820A (en) * | 1989-01-19 | 1990-07-30 | Sumitomo Metal Ind Ltd | Method for straightening bends of tube/bar stock |
JPH0829354B2 (en) * | 1990-01-30 | 1996-03-27 | 株式会社クボタ | Tube straightening method |
JP2006281228A (en) * | 2005-03-31 | 2006-10-19 | Sumitomo Metal Ind Ltd | Method for controlling roll-type pipe straightening machine |
CN101421059B (en) * | 2006-04-14 | 2010-08-18 | 住友金属工业株式会社 | Method for correcting pipe and method for producing pipe by using that correction method |
JP2008030090A (en) * | 2006-07-28 | 2008-02-14 | Jfe Steel Kk | Method of straightening bend of shape steel and straightening apparatus for the shape steel |
-
2019
- 2019-08-06 JP JP2020535814A patent/JP7036215B2/en active Active
- 2019-08-06 EP EP19848710.0A patent/EP3834956A4/en not_active Withdrawn
- 2019-08-06 US US17/054,031 patent/US20210229153A1/en not_active Abandoned
- 2019-08-06 WO PCT/JP2019/030998 patent/WO2020032070A1/en unknown
- 2019-08-06 CN CN201980052861.5A patent/CN112543683A/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6146320A (en) * | 1984-08-10 | 1986-03-06 | Nissan Motor Co Ltd | Automatic stress relief press device |
JPS63144822A (en) * | 1986-12-05 | 1988-06-17 | Nippon Steel Corp | Straightening method for bend of long sized stock |
JPH105872A (en) * | 1996-06-26 | 1998-01-13 | Nippon Seiko Kk | Method for straightening bend of long stock |
KR20140085835A (en) * | 2012-12-27 | 2014-07-08 | 재단법인 포항산업과학연구원 | Correcting apparatus for pipe |
Non-Patent Citations (1)
Title |
---|
See also references of WO2020032070A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20210229153A1 (en) | 2021-07-29 |
CN112543683A (en) | 2021-03-23 |
EP3834956A1 (en) | 2021-06-16 |
JP7036215B2 (en) | 2022-03-15 |
WO2020032070A1 (en) | 2020-02-13 |
JPWO2020032070A1 (en) | 2021-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20210303 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20220602 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: B21D 3/10 20060101AFI20220527BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20230103 |